Select count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '900' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '800' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '700' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '600' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '500' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '400' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '300' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '200' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '100' and c_category='공지사항' order by c_regist desc